Friday Forecast

9:33AM

DAYS 1-5 (AUGUST 26-30)…
A cold front swings through the region today with a few showers and thunderstorms possible, though any one area will be rain-free most of the day, and the threat will end during the afternoon from north to south, though the greatest threat for a heavier storm would be southeastern MA as the front will be in that area during the heat of the day. High pressure brings great weather this weekend. A disturbance moves through Monday with a shot of humidity and a risk of a few showers or thunderstorms before fair and drier weather returns Tuesday.
TODAY: Clouds most dominant this morning. Sun/clouds middle of day. Sun more dominant north to south later. Isolated showers and thunderstorms mainly midday north and west of Boston and southeast of Boston midday and afternoon with a locally heavy storm possible. Humid. Highs 76-82 South Coast, 83-90 elsewhere. Wind SW 5-15 MPH shifting to W.
TONIGHT: Mostly clear. Lows 60-68. Wind W 5-15 MPH.
SATURDAY: Mostly sunny. Highs 77-85, coolest coast. Wind light N to E.
SUNDAY: Mostly sunny. Lows 58-66. Highs 75-83, coolest coast.
MONDAY: Partly sunny. Isolated showers/thunderstorms. Humid. Lows 60-68. Highs 78-86, coolest South Coast.
TUESDAY: Mostly sunny. Lows 58-66. Highs 78-86, coolest coast.

DAYS 6-10 (AUGUST 31-SEPTEMBER 4)…
A few showers possible August 31 or September 1 otherwise a dry pattern with temperatures mostly above normal.

DAYS 11-15 (SEPTEMBER 5-9)…
Mainly dry pattern with limited shower chances. Temperatures near to above normal.

Thursday Forecast

7:29AM

DAYS 1-5 (AUGUST 25-29)…
A little hotter and a bit more humid today as the southwest wind strengthens north of high pressure. Cold front passes through Friday with isolated showers/thunderstorms. High pressure brings nice weekend weather. Humidity and isolated showers make a comeback Monday.
TODAY: Mostly sunny. More humid. Highs 76-82 South Coast, 83-90 elsewhere. Wind SW 5-15 MPH.
TONIGHT: Partly cloudy. Humid. Lows 62-70, warmest urban areas. Wind SW 5-15 MPH.
FRIDAY: Partly sunny. Isolated showers and a slight risk of a thunderstorm. Humid. Highs 76-82 South Coast, 83-90 elsewhere. Wind SW 5-15 MPH shifting to W.
SATURDAY: Mostly sunny. Lows 60-68. Highs 77-85, coolest coast.
SUNDAY: Mostly sunny. Lows 58-66. Highs 75-83, coolest coast.
MONDAY: Partly sunny. Isolated showers/thunderstorms. Humid. Lows 60-68. Highs 78-86, coolest coast.

DAYS 6-10 (AUGUST 30-SEPTEMBER 3)…
Mainly dry weather. Only a few isolated showers August 31 or September 1. Temperatures above normal.

DAYS 11-15 (SEPTEMBER 4-8)…
Mainly dry pattern with limited shower chances. Temperatures near to above normal.

Wednesday Forecast

7:21AM

DAYS 1-5 (AUGUST 24-28)…
High pressure south of New England will send some late summer warmth and increasing humidity back into New England through Friday. The only rain threat is from a passing cold front on Friday that may produce an isolated shower or thunderstorm in a few locations. High pressure builds in from the northwest over the weekend with fair weather, slight cooling, and lower humidity.
TODAY: Mostly sunny. Highs 76-82 South Coast, 83-90 elsewhere except cooling slightly on east coastal beaches in the afternoon. Wind light SW with some east coastal sea breezes in the afternoon.
TONIGHT: Mostly clear. Lows 60-68, warmest in urban areas. Wind light SW.
THURSDAY: Mostly sunny. More humid. Highs 76-82 South Coast, 83-90 elsewhere. Wind SW 5-15 MPH.
THURSDAY NIGHT: Partly cloudy. Humid. Lows 62-70, warmest urban areas. Wind SW 5-15 MPH.
FRIDAY: Partly sunny. Isolated showers and a slight risk of a thunderstorm. Humid. Highs 76-82 South Coast, 83-90 elsewhere. Wind SW 5-15 MPH shifting to W.
SATURDAY: Mostly sunny. Lows 60-68. Highs 77-85, coolest coast.
SUNDAY: Mostly sunny. Lows 58-66. Highs 75-83, coolest coast.

DAYS 6-10 (AUGUST 29-SEPTEMBER 2)…
Higher humidity and a few isolated showers/t-storms August 29. Fair August 30-31. A few showers September 1. Fair September 2. Temperatures generally above normal.

DAYS 11-15 (SEPTEMBER 3-7)…
Mainly dry pattern with limited shower chances. Temperatures near to above normal.

Tuesday Forecast

7:34AM

DAYS 1-5 (AUGUST 23-27)…
High pressure dominates for the next 3 days, gives way to a cold frontal passage with isolated showers Friday, then high pressure returns Saturday. In short, more dry weather.
TODAY: Mostly sunny. Highs 78-86. Wind W 5-15 MPH.
TONIGHT: Mostly clear. Lows 58-66. Wind light SW.
WEDNESDAY: Mostly sunny. Highs 80-88. Wind SW 5-15 MPH.
THURSDAY: Mostly sunny. Lows 62-70. Highs 82-90.
FRIDAY: Partly sunny. Isolated morning and midday showers. Lows 62-70. Highs 82-90.
SATURDAY: Partly cloudy. Lows 60-68. Highs 78-86.

DAYS 6-10 (AUGUST 28-SEPTEMBER 1)…
Mainly dry weather. Temperatures above normal.

DAYS 11-15 (SEPTEMBER 2-6)…
Overall pattern mainly dry. Will watch a couple tropical systems offshore but current indications are that they will not threaten the region. Temperatures mostly above normal.

Monday Forecast

7:18AM

DAYS 1-5 (AUGUST 22-26)…
Cold front offshore. The passage of the front overnight was a bit interesting as some wind damage occurred in Marlboro and Concord MA. Will wait for the NWS report before commenting later on this. No changes to the forecast going forward from here. A long dry stretch resumes today after brief overnight moderate to heavy rain.
TODAY: Sun and passing clouds. Drying out. Highs 75-82. Wind NW 10-20 MPH with higher gusts.
TONIGHT: Mostly clear. Lows 50-56 interior valleys, 57-63 elsewhere. Wind light W.
TUESDAY: Mostly sunny. Highs 78-86. Wind W 5-15 MPH.
WEDNESDAY: Mostly sunny. Lows 60-68. Highs 80-88.
THURSDAY: Mostly sunny. Lows 62-70. Highs 82-90.
FRIDAY: Partly sunny. Lows 62-70. Highs 82-90.

DAYS 6-10 (AUGUST 27-31)…
Mainly dry weather. Temperatures above normal.

DAYS 11-15 (SEPTEMBER 1-5)…
Overall pattern mainly dry. Will watch a couple tropical systems offshore but current indications are that they will not threaten the region. Temperatures mostly above normal.

Sunday Forecast

10:50AM

DAYS 1-5 (AUGUST 21-25)…
A cold front will cross the region tonight with the only rain threat this period. High pressure moves in later Monday then dominates through Thursday with Monday bringing a refreshing air mass then the mid week warm-up is still expected.
TODAY: Sunshine dominant into afternoon, yielding to increasing clouds late-day. More humid.
Highs 76-86, coolest coastal areas. Wind SE to S 5-15 MPH.
TONIGHT: Mainly cloudy. Band of showers moving west to east across the region. Briefly heavy rain possible. Humid. Lows 62-70. Wind S 10-20 MPH and gusty, shifting to W toward dawn.
MONDAY: Sun and passing clouds. Drying out. Highs 75-82. Wind NW 10-20 MPH with higher gusts.
TUESDAY: Mostly sunny. Lows 60-68. Highs 78-86.
WEDNESDAY: Mostly sunny. Lows 60-68. Highs 80-88.
THURSDAY: Mostly sunny. Lows 62-70. Highs 82-90.

DAYS 6-10 (AUGUST 26-30)…
Other than a few isolated showers around the August 27-28 weekend with a dissipating front in the region, mainly dry and warm to hot weather is expected.

DAYS 11-15 (AUGUST 31-SEPTEMBER 4)…
Overall pattern mainly dry. Will watch a couple tropical systems offshore but early indications are that they will not threaten the region. Temperatures mostly above normal.

Saturday Forecast

9:39AM

DAYS 1-5 (AUGUST 20-24)…
High pressure east of the region sends a weak marine flow into the region into an existing seasonable August air mass. This takes the early morning clouds and breaks them up but also creates diurnal clouds to mix with the sun. The only clouds that may grow enough to produce an isolated shower would need help from hills and mountains well west and northwest of Boston, but any of these would be brief. Cloudiness reforms tonight in the lower levels and breaks up again Sunday, but more substantial cloudiness will advance from west to east later in the day as well as some lower cloudiness returning from the south as the moisture level increases ahead of a cold front. This front will cross the region west to east in the early hours of Monday, probably with a band of non-beneficial showers. Monday’s daytime weather will be dry and cooler with a gusty breeze and a sun/cloud mix as a refreshing air mass arrives from Canada. Tuesday and Wednesday will feature sunshine and a slow warm-up as high pressure dominates.
TODAY: Partly to mostly sunny. Patchy fog early. Isolated afternoon shower possible hills far west and north of Boston. Highs 78-88, coolest coastal areas. Wind light variable with sea breezes.
TONIGHT: Partly to mostly cloudy. Patchy fog late. Lows 60-68, warmest urban areas. Wind light variable.
SUNDAY: Partly to mostly cloudy. Patchy fog early. Chance of showers late in the day mainly south and west of Boston. Increasingly humid. Highs 76-86, coolest coastal areas. Wind SE to S 5-15 MPH.
SUNDAY NIGHT: Mainly cloudy. Band of showers moving west to east across the region. Humid. Lows 60-68. Wind S 10-20 MPH and gusty, shifting to W behind the showers.
MONDAY: Sun and passing clouds. Drying out. Highs 75-82. Wind NW 10-20 MPH with higher gusts.
TUESDAY: Mostly sunny. Lows 60-68. Highs 78-86.
WEDNESDAY: Mostly sunny. Lows 60-68. Highs 80-88.

DAYS 6-10 (AUGUST 25-29)…
Other than a few isolated showers around the August 27-28 weekend with a dissipating front in the region, mainly dry and warm to hot weather is expected.

DAYS 11-15 (AUGUST 30-SEPTEMBER 3)…
A lower than average confidence forecast at this time. Leaning toward a few episodes of isolated to scattered showers with continued above normal temperatures.

Friday Forecast

2:17AM

DAYS 1-5 (AUGUST 19-23)…
High pressure builds over the region today and holds through Saturday with generally fair weather, but there may be enough moisture along a sea breeze front to pop an isolated shower near the South Coast today and then develop some low cloudiness and patchy fog tonight and again Saturday night, which will burn off each morning following, though a little more slowly in some locations on Sunday. And during Sunday, we’ll see the approach of a front from the west which will cause some increase in cloudiness again by the end of the day. However, it now appears that this front will be more progressive than I had been thinking, and it will likely end up producing a largely insignificant rain event in the form of scattered to general showers for a few hours during the early hours of Monday. After that, high pressure builds back in with more day weather, though the transition on Monday may feature some gusty wind as it dries out.
TODAY: Mostly sunny to partly cloudy. Remote risk of an isolated shower in the afternoon near the South Coast. Highs 80-88, coolest along the shoreline areas. Wind light variable with coastal sea breezes developing.
TONIGHT: Partly to mostly cloudy. Patchy fog overnight. Lows 60-68, warmest urban areas. Wind light variable.
SATURDAY: Partly to mostly sunny. Patchy fog early. Highs 78-88, coolest coastal areas. Wind light variable with sea breezes.
SATURDAY NIGHT: Partly to mostly cloudy. Patchy fog late. Lows 60-68, warmest urban areas. Wind light variable.
SUNDAY: Partly to mostly cloudy. Patchy fog early. Chance of showers late in the day. Highs 76-86, coolest coastal areas. Wind SE to S 5-15 MPH.
MONDAY: Mostly cloudy in the morning with showers ending west to east. Partly cloudy and windy afternoon. Lows 60-68, warmest urban areas. Highs 77-85.
TUESDAY: Mostly sunny. Lows 60-68, warmest urban areas. Highs 78-86.

DAYS 6-10 (AUGUST 24-28)…
Fair and warming weather is expected August 24-26. A weakening front late in the period may result in a few showers but no sign of widespread rain.

DAYS 11-15 (AUGUST 29-SEPTEMBER 2)…
Watch for a tropical storm or hurricane possibly offshore of the US East Coast sometime in the August 29-31 period. During that time the weather here should be largely rain-free with above normal temperatures. A weak front may bring a few showers somewhere in the first couple days of September with continued above normal temperatures.

Thursday Forecast

9:06AM

DAYS 1-5 (AUGUST 18-22)…
Let’s get something out of the way first. There is NO lunar eclipse tonight. That’s fake news. Now back to the weather. A disturbance passing south of New England this morning brings a few showers to southeastern MA, and a cold front approaching the region late in the day trigger an isolated shower or thunderstorm. High pressure moves in and dominates the weather Friday through most of the weekend. Another front moves in from the west and brings the risk of showers and thunderstorms by Sunday night and more likely Monday.
TODAY: Cloudiness and a few showers southeastern MA mid morning with increasing sun elsewhere and then there. Becoming partly cloudy this afternoon with a slight risk of isolated showers and thunderstorms. More humid. Highs 79-84 South Coast, 85-90 elsewhere. Wind W to SW 5-15 MPH, SE at times near the shore.
TONIGHT: Partly cloudy. Less humid. Lows 60-68, warmest urban areas. Wind light W.
FRIDAY: Mostly sunny. Highs 80-88, coolest coast. Wind light variable with sea breezes.
SATURDAY: Mostly sunny. Lows 60-68, warmest urban areas. Highs 78-88, coolest coast.
SUNDAY: Partly sunny. Lows 60-68, warmest urban areas. Highs 78-88, coolest coast.
MONDAY: Mostly cloudy. Chance of showers/thunderstorms. Humid. Lows 62-70. Highs 77-86.

DAYS 6-10 (AUGUST 23-27)…
High pressure builds in August 23 then hangs around through August 26 with fair weather and temperatures from near normal early in the period to above normal later in the period. A front may approach about August 27 but probably run out of steam and have little impact.

DAYS 11-15 (AUGUST 28-SEPTEMBER 1)…
High pressure will be the dominant feature but centered offshore it will allow more humidity and the risk of a few showers/thunderstorms as weak systems try to approach from the west. A tropical system may be somewhere off the East Coast during this period but far too soon to know its strength or position.

Wednesday Forecast

9:29AM

DAYS 1-5 (AUGUST 17-21)…
Post cold front today, still fairly warm, but humidity drops off as a gusty wind blows and see see a sun/cloud mix, trending sunnier. Another cold front approaches Thursday and we see a brief spike in humidity and heat and a risk of a few afternoon showers/thunderstorms. High pressure builds in with fabulous late summer weather Friday-Sunday with seasonable warmth and some coastal sea breezes this weekend.
TODAY: Partly to mostly sunny. Less humid. Highs 77-82 Cape Cod, 83-88 elsewhere. Wind NW 10-20 MPH and gusty, diminishing late in the day.
TONIGHT: Mostly clear. Lows 58-63 interior valleys, 63-68 elsewhere. Wind light NW to W.
THURSDAY: Sunny to partly cloudy. Isolated afternoon showers/thunderstorms. More humid. Highs 79-84 South Coast, 85-90 elsewhere. Wind W to SW 5-15 MPH.
THURSDAY NIGHT: Partly cloudy. Less humid. Lows 60-68, warmest urban areas. Wind light W.
FRIDAY: Mostly sunny. Highs 80-88, coolest coast. Wind light variable with sea breezes.
SATURDAY: Mostly sunny. Lows 60-68, warmest urban areas. Highs 78-88, coolest coast.
SUNDAY: Partly sunny. Lows 60-68, warmest urban areas. Highs 78-88, coolest coast.

DAYS 6-10 (AUGUST 22-26)…
Slow-moving front brings a chance of showers/thunderstorms August 22-23 with higher humidity. High pressure dominates with fair and seasonably warm weather August 24-26.

DAYS 11-15 (AUGUST 27-31)…
Slightly cooler weather and a risk of a few showers around the August 27-28 weekend, then fair and warm to hot to end the month.

Tuesday Forecast

9:09AM

DAYS 1-5 (AUGUST 16-20)…
A warm front will move into southern New England today, taking its time at first. You’ve heard talk of the threat of severe storms, and I will not downplay that, because there is a threat, but the atmosphere has presented us with a layer of warm and stable air to overcome first, and that may be quite preventative in storm development for several hours. Later, any storms that do form will favor western areas, but they cannot be rule out from migrating eastward later in the day into this evening. Once again, expect more isolated coverage of heavier activity versus a more general outbreak. Will monitor conditions this afternoon and update in the comments section if needed. The most unstable air will be around tonight as we are in the warm sector, with high humidity, and a cold front approaches. This may trigger some nighttime storms until the cold front crosses the region, which it should do by dawn or shortly thereafter on Wednesday, which will turn out to be a breezy day with lowering humidity but absent of an additional rain threat. The next shot at a few showers/storms will be later Thursday with the approach of another front, but this will have limited moisture to work with. High pressure overtakes the region and brings fair weather Friday and Saturday.
TODAY: Variably cloudy. Isolated light showers north and west of Boston this morning. Isolated to scattered showers and thunderstorms this afternoon. Any storms may be strong. Increasingly humid. Highs 77-82 South Coast, 83-88 elsewhere but likely late in the day. Wind SE to S 5-15 MPH, shifting to SW late.
TONIGHT: Partly cloudy. Isolated to scattered thunderstorms. Humid. Lows 64-72, warmest urban areas. Wind SW 5-15 MPH.
WEDNESDAY: Partly sunny. Lowering humidity. Highs 78-86, coolest South Coast. Wind NW 10-20 MPH with higher gusts.
THURSDAY: Partly cloudy. Isolated showers/thunderstorms mainly late-day. Lows 62-70, warmest urban areas. Highs 78-88, coolest South Coast.
FRIDAY: Mostly sunny. Lows 58-66, coolest interior valleys. Highs 78-88, coolest in coastal areas.
SATURDAY: Partly cloudy. Lows 58-66, coolest interior valleys. Highs 78-88, coolest in coastal areas.

DAYS 6-10 (AUGUST 21-25)…
High pressure should hang on for fair weather August 21. Slow-moving but weak front brings more humidity and a risk of showers August 22-23. Fair and drier August 24-25. Temperatures near to above normal.

DAYS 11-15 (AUGUST 26-30)…
Overall pattern looks mainly dry with limited shower/t-storm chances. Temperatures near to above normal.

Monday Forecast

9:40AM

DAYS 1-5 (AUGUST 15-19)…
A little drying at the surface today, and the edge coming off the heat means it will feel a little more comfortable today as a weak area of high pressure drifts over the region, but some mid and high level moisture will not allow it to be a totally sunny day. Humidity comes back as a warm front crosses the region Tuesday. The low pressure area parenting this front will also send its cold front across the area Wednesday. This frontal combo means a risk of a few rounds of showers and thunderstorms, but again not looking for a widespread beneficial rain. I have a slight concern for some stronger storms at least over interior areas later Tuesday, but will re-evaluate this going forward. Another weak area of high pressure moves in Thursday but a second cold front approaches later in the day, and it may help trigger a few showers and thunderstorms, though they will be the exception and not the rule (a phrase used quite often this summer). High pressure returns Friday making it a great summer day.
TODAY: Partly cloudy. Highs 78-85 South Coast, 85-92 elsewhere. Wind W to NW 5-15 MPH, diminishing later and allowing for some coastal sea breezes.
TONIGHT: Partly cloudy. Lows 62-69, warmest in urban areas. Wind light SE.
TUESDAY: Variably cloudy. Episodes of showers. Slight chance of thunderstorms. Humid. Highs 77-82 South Coast, 83-88 elsewhere but likely late in the day. Wind SE to S 5-15 MPH, shifting to SW late.
TUESDAY NIGHT: Partly cloudy. Isolated thunderstorms. Humid. Lows 64-72, warmest urban areas. Wind SW 5-15 MPH.
WEDNESDAY: Variably cloudy. Scattered showers and thunderstorms. Humid. Highs 78-86, coolest South Coast. Wind SW 10-20 MPH with higher gusts, shifting to NW.
THURSDAY: Partly cloudy. Isolated showers/thunderstorms mainly late-day. Lows 62-70, warmest urban areas. Highs 78-88, coolest South Coast.
FRIDAY: Mostly sunny. Lows 58-66, coolest interior valleys. Highs 78-88, coolest Cape Cod.

DAYS 6-10 (AUGUST 20-24)…
High pressure brings great weather for the weekend August 20-21. Slow-moving but weak front brings more humidity and a risk of showers August 22-23. Fair and drier August 24.

DAYS 11-15 (AUGUST 25-29)…
Overall pattern looks dry and warm.

Sunday Forecast

8:25AM

DAYS 1-5 (AUGUST 14-18)…
Back into the heat today but a cold front approaching from the northwest will ignite additional isolated to scattered thunderstorms. Monday-Thursday, the front will be hanging out nearby, probably staying just far enough south for dry weather Monday, sliding northward for a couple days of shower threats Tuesday-Wednesday, then back to the south again for dry weather Thursday.
TODAY: Partly sunny. Isolated to scattered showers and thunderstorms. Humid. Highs 76-82 Nantucket, 82-90 South Coast, 90-97 elsewhere. Wind S to SW 5-15 MPH.
TONIGHT: Variably cloudy. Chance of a shower or thunderstorm early. Humid. Lows 65-74, warmest urban areas. Wind W 5-15 MPH.
MONDAY: Partly cloudy. Humid. Highs 77-83 South Coast, 84-91 elsewhere.
TUESDAY: Variably cloudy. Chance of showers. Humid. Lows 60-70, warmest urban areas. Highs 78-86, coolest South Coast.
WEDNESDAY: Mostly cloudy. Chance of showers and thunderstorms. Humid. Lows 60-68. Highs 76-84, coolest Cape Cod.
THURSDAY: Partly cloudy. Less humid. Lows 60-68. Highs 77-86, coolest Cape Cod.

DAYS 6-10 (AUGUST 19-23)…
High pressure will dominate with fair weather August 19-21. A few showers are possible August 22-23 with more humidity. Temperatures above normal.

DAYS 11-15 (AUGUST 24-28)…
Warm to hot, limited shower/storm chances.

Saturday Forecast

8:39AM

DAYS 1-5 (AUGUST 13-17)…
Your reading assignment was far too long yesterday, so let’s shorten things up today by saying that the overall thought process remains the same: Unsettled weather is the general theme for this period but not a whole lot in the way of widespread rainfall. Still working out some timing issues so the forecast beyond tomorrow is moderate confidence. We’ll be bisected by a front today, as we talked about yesterday, and that will make the weather range widely from northeastern portions of the forecast area to southwestern locations. Still expecting us to get back into the hotter air mass for tomorrow before a front comes back and takes the heat out of the picture for a few days to start the new week. My uncertainty lies in the precipitation chances during the Monday-Wednesday period. Playing the less versus more scenario for now. Updates to come as always.
TODAY: Mostly cloudy southeastern NH through northeastern and east central MA with a risk of a few showers. Elsewhere variably cloudy with scattered showers/thunderstorms, some of which may be strong. Humid. Highs 75-82 coastal NH and eastern MA, 83-92 elsewhere. Wind NE 5-15 MPH over southeastern NH and eastern MA, S to SW 5-15 MPH in areas further west and southwest.
TONIGHT: Mostly cloudy. Patchy fog. Chance of a few showers. Isolated heavier thunderstorms possible central MA to southwestern NH. Humid. Lows 62-72, warmest far west and southwest of Boston. Wind variable up to 10 MPH becoming SE to S in most areas overnight.
SUNDAY: Partly sunny. Isolated to scattered showers and thunderstorms. Humid. Highs 75-80 Nantucket, 80-88 South Coast, 88-95 elsewhere. Wind S to SW 5-15 MPH.
MONDAY: Mostly cloudy. Chance of showers, favoring the morning. Humid. Lows 64-74. Highs 77-85.
TUESDAY: Partly cloudy. Less humid. Lows 60-70, warmest urban areas. Highs 78-86.
WEDNESDAY: Mostly cloudy. Chance of showers. More humid. Lows 60-68. Highs 76-84.

DAYS 6-10 (AUGUST 18-22)…
Speeding timing up with a weak front bringing a risk of showers August 18 then fair weather dominating August 19-21 as high pressure takes over. Warm/muggy and a risk of showers/thunderstorms for August 22.

DAYS 11-15 (AUGUST 23-27)…
Warm to hot, limited shower/storm chances.

Friday Forecast

8:10AM

DAYS 1-5 (AUGUST 12-16)…
Complex forecast as a frontal boundary gets involved in the forecast during the next several days. Its position will make a big difference in local weather. It looks like today the entire southern New England region will still be in the heat, like yesterday, as the front will be to the north, but a little wave of low pressure moving along it, and off the coast of Maine by evening, combined with a little nose of high pressure extending southeastward from eastern Canada, will push this front south southwestward across southern NH and into eastern MA tonight into Saturday. It will come to a stop somewhere in a line from southern MA or northern RI back across east central MA to southwestern NH most likely, hanging there for a good part of Saturday before returning back northeastward across the region by early Sunday. So areas that end up on the other side of the front after it passes will be cooler Saturday, while areas that are not reached by the front will stay rather hot, and then the heat will be in general control over most of the region again by Sunday as the front moves back the other way. But another wave of low pressure moving along the boundary sometimes between Sunday night and the middle of Monday will pull the front southward again, but this time being more orientated in a “traditional” way so that it comes through from northwest to southeast. End result? We should get into a slice of drier air by late Monday or certainly Tuesday. As for showers/thunderstorms during this period, that is a complex puzzle as well. I think the area as a whole will fall short of getting greatly beneficial rain, but some areas will see at least one round of decent showers and thunderstorms. Details will have to be worked out on a day-by-day basis, so I can say that today’s activity will be isolated to scattered, can occur any time, but will favor the afternoon to early evening, when any storms that occur can be strong to severe, so keep an eye out for changing conditions. Saturday’s greatest storm risk will be closer to the South Coast and back through central MA and southwestern NH where the hot/muggy air is, with more cloudiness but less rain risk further north and east. Sunday will carry a risk of isolated to scattered showers/thunderstorms as the region gets back into the hot/muggy air. We’ll have to see if a more organized area of showers/storms occurs at some point Sunday night and/or Monday, depending on the timing of the front as it makes its second southward push. A bubble of high pressure should bring a break in the action by Tuesday, based on current timing. Again please check for updates as timing of location of the front, and resultant showers/storms is hard to pin point. Lastly, for late tonight and early Saturday, which is the second peak period for the Perseid Meteor Shower, we will have to keep an eye on cloudiness that may still be around from afternoon / evening thunderstorms. I think most of it should exit, but then there will be the issue of possible low cloudiness coming down from the north and northeast with the passage of the front during the late evening and overnight hours. So no area is a lock for clear sky, but some areas may end up ok for several hours. Updates will be posted in the comments section as well as on the WHW Facebook page.
TODAY: Mostly sunny to partly cloudy with very isolated showers and a slight risk of thunderstorms through midday. Partly sunny during the afternoon with isolated to scattered showers and thunderstorms. Any storms may be locally strong to severe. Very humid. Highs 75-82 Nantucket, 82-90 South Coast, 90-97 elsewhere. Wind SW 5-15 MPH with higher gusts.
TONIGHT: Variably cloudy with a risk of showers/thunderstorms early evening. Partly cloudy to mostly clear late evening. Overnight, possible deck of low clouds at least coastal NH and eastern MA but may spread inland somewhat by dawn. Patchy fog. Very humid. Lows 62-70 in areas that saw rain late-day and evening as well as coastal NH and northeastern MA, 70-77 urban areas and any areas in southern MA, RI, and interior NH that did not see late-day rain.
SATURDAY: Mostly cloudy southeastern NH through northeastern and east central MA with a risk of a few showers. Elsewhere variably cloudy with scattered showers/thunderstorms, some of which may be strong. Humid. Highs 75-82 coastal NH and eastern MA, 83-92 elsewhere. Wind NE 5-15 MPH over southeastern NH and eastern MA, S to SW 5-15 MPH in areas further west and southwest.
SATURDAY NIGHT: Mostly cloudy. Patchy fog. Chance of a few showers. Isolated heavier thunderstorms possible central MA to southwestern NH. Humid. Lows 62-72, warmest far west and southwest of Boston. Wind variable up to 10 MPH becoming SE to S in most areas overnight.
SUNDAY: Partly sunny. Isolated to scattered showers and thunderstorms. Humid. Highs 75-80 Nantucket, 80-88 South Coast, 88-95 elsewhere. Wind S to SW 5-15 MPH.
MONDAY: Mostly cloudy. Chance of showers, favoring the morning. Humid. Lows 64-74. Highs 77-85.
TUESDAY: Partly cloudy. Less humid. Lows 60-70, warmest urban areas. Highs 78-86.

DAYS 6-10 (AUGUST 17-21)…
More humid with showers possible August 17. Next shower risk late August 19 to early August 20. Drier at the end of the period. Temperatures near to above normal.

DAYS 11-15 (AUGUST 22-26)…
Still looking for another build of heat/humidity with few chances for showers/storms.

Your no-hype southeastern New England weather blog!